I highly recommend online grocery shopping...
www.leshop.ch...you can order in English and pay with credit card, and they deliver the following evening between 5-8pm.
Try to only go out when you *want* to, not when you feel you *need* to...there is too much pressure in my opinion for mums to get 'back to normal' after a birth...instead, this is a really really important time for you and bubs to get to know each other, and to nurtured and loved...and there are plenty of nasty things going around at the moment, so it's better to keep your bubs away from strange persons...
This webpage is a pretty good description of 'sleep patterns'...
http://www.lpch.org/DiseaseHealthInf.../behrslep.html
please note that when it says 8-9 hours in the night, that doesn't mean *uninterrupted* - newborns do wake regularly at night!
All my three children breastfed 2 hourly round-the-clock for the first 6-8 weeks, my really low point was at the 6 week mark and again around 6 months...it really is tough but I promise it does get better...but there's no 'magic solution' most of it is a lot of hard hard work!
I can also recommend the Australian Breastfeeding Association website and there is a forum and you can get breastfeeding counselling via email in English...
www.breastfeeding.asn.au